john thavis who could have earth the vatican for 30 years says benedict is not a meddler. >> he probably will ensure whatever he does, woe never upstage the next pope. >> reporter: while appreciated today as a holy man, critics say benedict's executive skills fell woefully short. >> there's a need for someone who has managerial skills in terms of running the ship of state. neither john paul ii nor benedict were managers by nature. >> reporter: benedict's failures made public in documents leaked by his butler last year, laying out the betrayals and infighting in the vatican bureaucracy known as the cure ya, on securing the pope's message and hurting his efforts to revitalize the church. how much of that can be blamed on the kur rhea? >> i think most of it, frankly. >> reporter: george weigle, nbc's vatican analyst, says that leaves the next pope with a crucial task. >> he has to find someone who can clean house and who can make the cure ya an instrument of what we call the new eadvantage lizization now, an impediment to t. >> reporter: still up in the air, the date when the cardinals will